Of course, TMZ insists that its sources are credible. The first story linked above asserts that AdultFriendFinder has traced the IP address in question to Holmes. Here's a screen shot of the page:

The profile supposedly features Holmes describing his penis as "short/average" and his alcohol consumption as "light/social," and avoids a question about drug use. The tagline: "Will you visit me in prison."

According to TMZ, the Match.com item is tagged the same way, while describing Holmes's favorite movies (Star Wars is among them), most beloved book (Where's Waldo?) and stating, "I spend a lot of time thinking about the future. Mind = blown." Here's a screen shot of that page, featuring the same photo:

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Convincing? Not necessarily -- and because the Aurora Police Department has declined to answer questions about Holmes's hair color and hadn't contacted AdultFriendFinder as of Saturday's publication of the TMZ item, these reports are being mentioned toward the bottom of most articles from the traditional media, if at all.

This seems like the proper balance to strike at this point. To pretend that the information isn't circulating through social media at the speed of a "Like" button makes little sense in this day and age. But automatically giving it credence before police vet the information is as risky as it is irresponsible.

Besides, we'll have no doubt about Holmes's hair color following his first court appearance later this morning.

Update, 11:38 a.m. July 23: James Holmes does indeed sport boldly dyed hair, as Melanie Asmar saw firsthand during his step into public view since the mass slaying at the Century 16. Click to read her complete coverage of the accused Aurora theater shooting suspect's first court appearance.